Cup holder



FIG. 1 is a perspective view of the cup holder, the elements shown in phantom forming no part of the claimed design;

FIG. 2 is a left side view of the cup holder, the elements shown in phantom forming no part of the claimed design;

FIG. 3 is a right side view of the cup holder, the elements shown in phantom forming no part of the claimed design;

FIG. 4 is a front view of the cup holder, the elements shown in phantom forming no part of the claimed design;

FIG. 5 is a back view of the cup holder;

FIG. 6 is a top view of the cup holder, the elements shown in phantom forming no part of the claimed design; and,

FIG. 7 is a bottom side view of the cup holder, the elements shown in phantom forming no part of the claimed design. 

I claim the ornamental design for a cup holder, as shown and described. 